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  • #16
    I had, for about a week, a Crem One Dual Boiler that had two copper boilers. The coffee tasted great, but I found the taste of the hot water from the tap borderline undrinkable; tasted incredibly metallic. The machine had done about 300 shots by this point, and the water going in was Adelaide tap water filtered with a Brita Maxtra Limescale+ filter. Perhaps it was lowering the hardness to a point of leaching the metals? Or the machine was just still too new?

    Comment


    • yldlj
      yldlj commented
      Editing a comment
      I don't think it would be leeching metals from the boiler.

  • #17
    Originally posted by yldlj View Post
    Is there any safe bottled water for stainless steel boilers? I was using mt Franklin bottled water previously and while the hardness is very low I'm not sure about the pH as I couldn't find anything online.
    Just be aware that any stated 'specs' by a food manufacturer( milk, water etc.) is Indicative Only, and not necessarily what the bottle in your hand contains.
    The figures are factually a representation of a 'sample' put forward for testing at some point in time.

    Comment


    • yldlj
      yldlj commented
      Editing a comment
      Yep. I tested the hardness of Mt Franklin bottled water and it was very soft.

  • #18
    What would be the best way to reduce chlorides in water?

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    • #19
      hi Nate07 Not absolutely sure, but i was of the opinion that standing for 1 day released the chlorine ( thinking tropical fish tank before you add extra water for the fish ) or you can get drops from pool shops and aquarium shops etc that neutralise chlorine or speed up its natural loss. Now chlorides , i think are the byproduct of the chlorine doing its sanitising ( think public pool smell) and unless there has been an awful big demand for chlorine ( think dog in pool or kids doing other things) then there shouldn't be chloride issues in good quality tap water.

      In a coffee water scenario- just about all levels of water filters handle chlorine in a reasonable fashion -- but not as many do a good job with ph level/ water hardness which are culprits for scale. Please wait for others to chime in , as i said, i am not certain.

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      • #20
        My reading on this issue indicates that Chlorides (ie Cl-) can only be removed by reverse osmosis or distilling. Chlorides form part of salts. Chlorine and chloramines can be removed by a resin filter system like the Brita Purity Finest filter system - but not chlorides.

        Comment


        • Dimal
          Dimal commented
          Editing a comment
          Chlorine and chloramines can be removed by a resin filter system like the Brita Purity Finest filter system - but not chlorides.
          Agree...
          Not worth mucking around with various Internet tropes such as 'leaving the water standing in a jug for a couple of hours'. You will end up paying too high a price for non-qualified, regurgitated misinformation.

      • #21
        Originally posted by prh View Post
        My reading on this issue indicates that Chlorides (ie Cl-) can only be removed by reverse osmosis or distilling. Chlorides form part of salts. Chlorine and chloramines can be removed by a resin filter system like the Brita Purity Finest filter system - but not chlorides.
        Yea this is what i am starting to understand. I had some water tests done and results showed chloride levels were high and was recommended towards a RO system. This is fine as obviously after spending decent $$ on a nice machine i want it to last however we are looking well over $1k for something to deal with the water. So kinda tossing up between bottled water / new filter system. All other things seem reasonable except the chloride so now kinda stuck on this decision..

        Water report came back with:
        PH 7.1
        TDS 157ppm
        Chloride 71 ppm
        TH 51 ppm

        Comment


        • yldlj
          yldlj commented
          Editing a comment
          This is the reason why my next machine will have a copper boiler.

        • nate07
          nate07 commented
          Editing a comment
          Would the issues be the same with machines with brass boilers as well?

      • #22
        There are some very high quality bottled water options around that contain zero Chlorides, such as the Pureau brand available in most places...

        Mal.

        Comment


        • Barry O'Speedwagon
          Barry O'Speedwagon commented
          Editing a comment
          Yep, I've taken to buying a goonbag of Pureau when I go away (via car) to feed the espresso machine. Was in Bateman's Bay a month or two ago and looked at the kettle in the place I was staying and thought......I'm not feeding the Cremina that stuff.

      • #23
        Originally posted by Dimal View Post
        There are some very high quality bottled water options around that contain zero Chlorides, such as the Pureau brand available in most places...

        Mal.
        This is the second time someone has recommended this water. I just don't understand how it can be good because apparently it has no minerals in it at all.

        Comment


        • Dimal
          Dimal commented
          Editing a comment
          A pinch of Sodium Bicarbonate will fix that...

        • SanderP
          SanderP commented
          Editing a comment
          I've been using Pureau for a while now with a pinch of SodiBic on my cremina there was no appreciable scale or corrosion.

          I've not popped the bonnet on my Pro600 yet so can't comment on SS impacts but I'm confident that it will be fine.

          Taste is good, I'd happily recommend it.

          Cheers

      • #24
        Actually I bought Pureau recently from Mal's recommendation because I am getting a bit tired of remineralising my own water, it is a really great tasting water. But I was also concerned if it was just straight RO water. I did some searching on their website it says it is RO'd then filtered and it does have minerals although a very minuscule amount.

        "On a parts per million concentration (ppm), Noble’s Pureau still maintains enough mineralisation to be healthy to drink and will not draw minerals or nutrients from people’s bodies."

        Of what minerals i'm not sure but it seems to be a secret

        Comment


        • #25
          Originally posted by c0alJK View Post
          Actually I bought Pureau recently from Mal's recommendation because I am getting a bit tired of remineralising my own water, it is a really great tasting water. But I was also concerned if it was just straight RO water. I did some searching on their website it says it is RO'd then filtered and it does have minerals although a very minuscule amount.

          "On a parts per million concentration (ppm), Noble’s Pureau still maintains enough mineralisation to be healthy to drink and will not draw minerals or nutrients from people’s bodies."

          ​​​​Of what minerals i'm not sure but it seems to be a secret
          ​​​​​​From the website. Doesn't seem suitable for espresso machines at all
          Attached Files

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          • #26
            Hi, Have you contacted Puretec Filtration, their head office is in Adelaide. I am using their Balance Plus series on my espresso machine here in Brisbane.
            They were extremely helpful with information and advice when I was choosing a water filter setup for my machine.
            Their filters are made in Adelaide so I am sure they will be able to sort you out or point you in the right direction.
            Maurice

            Comment


            • #27
              Originally posted by Birkin7 View Post
              Hi, Have you contacted Puretec Filtration, their head office is in Adelaide. I am using their Balance Plus series on my espresso machine here in Brisbane.
              They were extremely helpful with information and advice when I was choosing a water filter setup for my machine.
              Their filters are made in Adelaide so I am sure they will be able to sort you out or point you in the right direction.
              Maurice
              No I haven't but have heard good things about their filters. I don't think they have anything suitable for SS boilers tho.

              Comment


              • #28
                Originally posted by c0alJK View Post

                I did some searching on their website it says it is RO'd then filtered
                Since an RO is basically a sub nanoscale filter, something here doesn't add up.

                The difference between an RO and a nanofilter is basically one of pore size and terminology: for a nanofilter the cutoff is stated in terms of particle size (in the nanometres, hence the name) while for an RO the cutoff is stated in terms of molecular weight.

                Originally posted by c0alJK View Post

                "On a parts per million concentration (ppm), Noble’s Pureau still maintains enough mineralisation to be healthy to drink and will not draw minerals or nutrients from people’s bodies."
                That is true of all water. The idea that very pure water will "draw out" minerals or nutrients has been completely debunked by actual research.

                Comment


                • c0alJK
                  c0alJK commented
                  Editing a comment
                  Not trying to take over the thread, but just to be clear pureau is intended to be a 100% pure RO water?
                  Also filtering water after RO is not new its just a backup in case the storage tank somehow has impurities, apologies if I misunderstood your question, I think that's what you were getting at?

              • #29
                I am pretty sure they are SS compatible, the 2 links below especially the first one have some useful info.

                https://puretec.com.au/core/media/me...1f223dbd62847d

                ​​​​​​https://puretec.com.au/core/media/me...f46b4acefe8315

                Cheers

                Comment


                • #30
                  Things have changed in Adelaide. When I lived there many years ago, the water tasted like it had been sitting in a black garden irrigation hose... in the sun. If you washed your car in the sun, it came out looking dirtier.

                  Just on hardness, I don’t have my machine plumbed in so somewhere in these pages I wrote about a little filter setup using ion resins to remove the calcium etc. The setup recycles cartridges from the Sunbeam EM6910 machines. I bought a kilo of the resin and change the cartridge out every couple of months. Any water going into the machine goes through the fridge filter (Samsung) and then through the resin in the cartridge.

                  About six months ago, after 3 years of use, I took the mushroom off the group head and while I could see some flecks of white, I’d say the machine was pretty clean. I have never descaled it. (Nth NSW water)

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